EP1735630B1 - Appareil a resonance magnetique nucleaire - Google Patents
Appareil a resonance magnetique nucleaire Download PDFInfo
- Publication number
- EP1735630B1 EP1735630B1 EP05728188A EP05728188A EP1735630B1 EP 1735630 B1 EP1735630 B1 EP 1735630B1 EP 05728188 A EP05728188 A EP 05728188A EP 05728188 A EP05728188 A EP 05728188A EP 1735630 B1 EP1735630 B1 EP 1735630B1
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- EP
- European Patent Office
- Prior art keywords
- shaft
- magnet
- magnetic resonance
- resonance imaging
- imaging apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005481 NMR spectroscopy Methods 0.000 title 1
- 238000002595 magnetic resonance imaging Methods 0.000 claims abstract description 40
- 230000009471 action Effects 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 238000003384 imaging method Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 9
- 230000005484 gravity Effects 0.000 description 8
- 230000002787 reinforcement Effects 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000013421 nuclear magnetic resonance imaging Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/383—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets
Definitions
- This invention relates to a Magnetic Resonance Imaging apparatus, according to the preamble of claim 1.
- Magnetic Resonance Imaging apparatuses are known to be quite heavy, whereby rotary handling of the magnet is often difficult.
- the magnet is often required to be rotated for examinations which could not be easily performed on patients with limited mobility or on certain body parts.
- the magnet must be easily rotated to positions other than the normal horizontal patient position, either through a few degrees or through rotation angles greater than 90°.
- Magnetic Resonance Imaging apparatus which features a very simple construction and a high strength and safety.
- Magnetic Resonance Imaging apparatuses are also known to be quite heavy, which poses serious magnet handling problems, as well as related safety drawbacks.
- An accidental and uncontrolled rotation of the magnet might have dangerous effects both for the patient under examination and for any operator moving in the operating range of the apparatus.
- the object of this invention is to provide a magnet for a Magnetic Resonance Imaging apparatus, which might simply and inexpensively obviate the drawbacks of prior art Magnetic Resonance Imaging apparatuses, thereby providing a simple, inexpensive and reliable, as well as highly fail-safe apparatus.
- the invention fulfils the above objects by providing an apparatus for Nuclear Magnetic Resonance imaging, comprising the features of the preamble of claim 1 in combination with the features of the characterizing part of claim 1.
- removable lock/release means are provided between the shaft, which is rotatably and translatably connected to the magnet, and the support case, which allow to change from a magnet rotation condition to a magnet stop condition.
- the lock/release means are formed, for instance, by two opposed ring gears, whereof one is non rotatably connected to the support case and the other is secured to the shaft in such a manner as to rotate therewith, the two ring gears being mutually engageable and disengageable by axial translational motion of the shaft relative to the case.
- the ring gears preferably have front teeth and are maintained in a stable mutual engagement condition thanks to the force exerted by an elastic member, whereas means are provided for moving the two ring gears to a disengagement condition against the action of the elastic member.
- the elastic member is preferably provided in the form of a Belleville spring, whereas the displacement in the disengagement direction is exerted by an actuator of any type whatever, particularly a hydraulic or pneumatic actuator.
- the hydraulic actuator is at least partly integrated in the shaft.
- Motion can be transmitted to the shaft by providing a shaft handling grip point on the outer surface thereof, which grip is formed by a radial lever, which is itself translatable with the shaft, whereby any magnet translational motion causes a corresponding translational motion of the radial lever.
- the shaft is supported in the case by bearings, which are preferably placed at the ends of the shaft, and are, for instance, roller bearings.
- the radial lever is connected to the end of the rod of a hydraulic or pneumatic rotary cylinder actuator, i.e. a linear actuator, which transmits motion to the shaft.
- the radial lever is coupled to the rod of the actuator by sliding means, which slide in the axial shaft translation direction, e.g. the lever has a thinned perforated terminal, which is mounted on a bar that is held at its ends by a terminal fork for connection with the rod.
- the fork has such a width that the bar retained thereby is at least as long as or slightly longer than the translation stroke of the shaft. Therefore, a translational motion of the shaft and the associated radial lever does not involve an identical translational motion of the actuator, which stands still with respect to the case, as the radial lever slides on the bar retained by the fork of the linear actuator.
- the linear actuator has a slide guide at its end associated to the support case, for allowing translational motion of the actuator, and the rod of the actuator has one degree of freedom, particularly of rotation, with respect to the radial lever.
- the shaft as the shaft is translated, it also drives into translation the linear actuator, which follows the shaft by translating on the slide guide that connects it to the support case.
- the linear actuator is connected to the support case or to the radial lever with the interposition of a joint which allows it to tilt to accommodate the shaft translation. This is possible because such translational motion extends for so little, i.e. in a range of a few millimeters, that the substantial verticality of the linear actuator is not dramatically affected.
- the radial lever may be designed to have a joint which allows it to tilt relative to the shaft, to accommodate the translational motion of the shaft relative to the actuator.
- the ring gears and the Belleville spring may be displaced and stressed in the axial direction of the shaft by hydraulic or pneumatic lock/release displacement means.
- the end of the shaft opposite the magnet is provided in the form of a hydraulic or pneumatic lock/release cylinder actuator, whose rod projects out of this end of the shaft, whereas the rod is mounted in such a manner as to be able to rotate relative to the shaft and is alternately subjected to the action of elastic means, which oppose the shaft translation toward disengagement of the ring gear teeth.
- the angular position of the shaft and of the associated ring gear relative to the case, and to the associated ring gear may be controlled by sensors and/or photocells and/or encoders which ensure that shaft rotation only stops when the facing teeth of the ring gears are in a proper mutually meshed position.
- the magnet extreme positions may be also monitored, so that shaft rotation automatically stops when the shaft reaches either extreme position, i.e. when the magnet is in either C- or U-shaped position.
- This preferred arrangement provides a Magnetic Resonance Imaging apparatus which has a simple construction and is highly fail-safe, as the magnet may be only released when the two ring gears are moved to a disengagement position and allow free rotation of the magnet. Therefore, the actuation of the linear rotary actuator controls the rotation of the shaft and of the magnet into the desired position. As soon as the desired rotation is completed, the ring gears move back into the contact position, with aligned teeth for proper meshing, and are locked together thanks to the action of the Belleville spring which compresses them against each other, and of the sensors and/or photocells and/or encoders which are possibly provided to monitor the relative positions of the teeth.
- a further advantage as compared with prior art apparatuses is that any magnet lock/release and rotation action is performed by linear actuators, which have a simpler construction and ensure a higher reliability at lower costs as compared with normal prior art actuators.
- the present invention addresses, separately from or in combination with the above, a magnet for a Magnetic Resonance Imaging apparatus, said magnet having at least two, preferably three open sides, and delimiting the patient receiving area; said magnet being further composed of three yoke elements, i.e. two parallel magnetically permeable yoke elements, and a transverse yoke element for connection of said two parallel elements, whereby said magnet has a C shape.
- Fig. 1 shows a magnet for a Magnetic Resonance Imaging apparatus which has three open sides and delimits a patient receiving area.
- the magnet is composed of three yoke elements, i.e. two parallel magnetically permeable yoke elements 1, 2 and a transverse yoke element 3 for connection of these two parallel elements 1 and 2, whereby the magnet has a C shape.
- the pole piece support structure may be said to be mainly acted upon by two forces: the gravity force and the force of the magnetic field generated between the pole pieces.
- the force of the magnetic field between the pole pieces tends to bend the two arms of the C- or U- shape toward each other and is not affected by the spatial arrangement of the support structure, but remains essentially constant regardless of the spatial arrangement and the rotation of the apparatus.
- the gravitational force is directed downwards, as is known, and causes different stresses on the structure depending on the position of the support structure, i.e. generally the magnetic yoke.
- the force of the gravitational field acts in such a manner that the upper arm tends to bend downwards, whereas the lower arm tends to move toward the floor.
- gravity-induced stresses cause both arms to deform toward the floor in the same direction. All intermediate positions of the magnet, between the two above mentioned extreme conditions, cause a dramatic change of the stresses acting on the arms of the C-shape.
- a compensation for the above deformations may be attempted during design and fabrication, e.g. by a construction which preventively accounts for the expected magnet deformation, or by the well-known shimming mechanism, which corrects the magnetic field and makes it uniform and parallel even in case of non homogeneous and parallel lines of flux, due to the gravitational force and the magnetic field force.
- a prior art apparatus with a rotating C-shaped magnet often has the drawback of providing either a small imaging volume or a low image quality.
- the end portion associated to the transverse connection element 3 has a transverse wall for connecting the two parallel elements with the transverse element 3, which has an end step 101, 102, for engagement of a corresponding end 103, 203, of the transverse element 3.
- fastener means 401, 402 which are oriented perpendicular to the longitudinal extension of the transverse wall 3 and engage the two parallel elements 1, 2 with the transverse element 3 in the raised thickness of this end step 101, 102.
- fastener means 503 are shown which are oriented parallel to the longitudinal extension of the transverse wall 3, and engage the two parallel elements 1, 2 with the transverse element 3 at the end step 101, 102.
- the fixation between the elements of the C-shaped structure of the magnetic yoke is further reinforced by reinforcement member 5, which are positioned in the inwardly facing corners between the parallel elements 1, 2 and the transverse element 3, and which are retained in position between the parallel elements 1, 2 and the transverse element 3 by fastener means 105, 205.
- the reinforcement members 5 are each formed by a triangular member and may be provided in a variable numbed depending on the sturdiness, required from the magnet.
- the weight and rigidity of the structure may be advantageously varied by providing a single triangular member 5 extending essentially along the whole parallel element and transverse element coupling length, or one or more preferably triangular reinforcement ribs 5, 6, which have a definitely lighter weight.
- two triangular reinforcement ribs are provided for each parallel element/transverse element pair, which is a good compromise between rigidity and lightness of the assembly.
- the fastener means are preferably provided in the form of screw fasteners, preferably having a head with a greater diameter than the cylindrical shank of the screw.
- screw fasteners preferably having a head with a greater diameter than the cylindrical shank of the screw.
- the pole pieces of a Magnetic Resonance Imaging apparatus shall be constantly in a proper relative position, to form a highly homogeneous magnetic field and provide high quality images.
- the pole pieces shall be constantly in a proper relative position, to form a highly homogeneous magnetic field and provide high quality images.
- a magnet according to the present invention assures that no or almost no relative displacement occurs between parallel elements, and between the pole pieces, whereby the magnetic field remains uniform and homogeneous even when the magnet is rotated, and assures that the image of the body under examination has a good quality.
- the magnet of this invention advantageously and essentially allows to avoid any relative displacement between the parts which compose the magnet so that, even upon rotation of the magnet, the magnetic field is essentially unaltered and optimal for a proper examination of the body in any position thereof, at least in the imaging volume.
- the structure is highly stable, and the deformation of the parts which compose the C-shaped magnet is insignificant.
- the magnet is rotatably handled about an axis perpendicular to at least one axis of the cavity opening, particularly in the preferred arrangement of the figures the axis of rotation essentially passes through the center of the imaging volume of the apparatus, where imaging volume, as used herein, refers to the portion of the magnet-defined cavity in which the magnetic field has the best characteristics for imaging the body under examination.
- the magnet In order that the magnet may be rotated about the preferred axis, it has a coupling flange 30 in its transverse wall opposite the cavity, for coupling the shaft 31 to the transverse wall of the magnet, said transverse wall being rotatably mounted to a support case 32 on rotatably and translatably supporting means 32, such as slide/rotary guides and/or roller bearings.
- the coupling flange 30 and the support case part 32 have mutually cooperating lock/release means for locking/releasing the rotation, which allow to change from a magnet rotation condition to a magnet stop condition.
- the means for locking/releasing the magnet are provided in the form of two opposed and interconnected ring gears 36, 37, whereof one is integral with the support case 32 and does not rotate, and the other is integral with the shaft 31 and rotates therewith.
- the ring gears are maintained in a stable mutual engagement condition by the force exerted by an elastic member, and means are provided for moving the two ring gears to a disengagement condition against the action of the elastic member 39.
- the elastic member is provided in the form of a Belleville spring, which ensures a highly strong attachment, adapted to maintain the two ring gears in a mutual engagement condition.
- the ring gears 36, 37 preferably have front teeth, which provide a more compact structure and a better and more accurate mesh between the teeth thereof.
- the ring gear 36 associated to the shaft 31 is integral with the coupling flange 30 and its teeth are directed opposite the magnet.
- a shaft handling grip which is formed by a radial lever 63 which is rotatably and/or translatably integral with the shaft; this lever is articulated to the rod of a hydraulic or pneumatic cylinder actuator 64, i.e. a linear actuator, which generates a rectilinear motion, to be turned into a rotary motion of the shaft by the action of the radial lever.
- a hydraulic or pneumatic cylinder actuator 64 i.e. a linear actuator, which generates a rectilinear motion, to be turned into a rotary motion of the shaft by the action of the radial lever.
- the shaft 31 is preferably associated to the support case 32 by means of roller bearings, which are preferably placed at the ends of the shaft.
- the linear actuator is itself connected by its lower portion to the case and, depending on the desired embodiment, may be stationary or translatable on a suitable guide with respect to it.
- the radial lever 63 is coupled with the rod of the actuator 64 by sliding means, which slide in the axial shaft translation direction, e.g. the lever has a perforated and thinned terminal, as shown in Fig. 8 which is mounted on a bar that is held at its ends by a terminal fork 90 for connection with the rod.
- the fork 90 has such a width that the bar held thereby is at least as long as or slightly longer than the translation stroke of the shaft. Therefore, a translational motion of the shaft and the associated radial lever does not involve an identical translational motion of the actuator, which stands still with respect to the case, as the radial lever 63 slides on the rod which is retained by the fork 90 of the linear actuator 64.
- the linear actuator has a slide guide, not shown, at its end associated to the support case, for allowing translational motion of the actuator, and the rod of the actuator has one degree of freedom, particularly of rotation, with respect to the radial lever.
- the shaft as the shaft is translated, it also drives into translation the linear actuator, which follows the shaft by translating on the slide guide that connects it to the support case.
- the linear actuator is connected to the support case or to the radial lever with the interposition of a joint which allows it to tilt to accommodate the shaft translation. This is possible because such translational motion extends for so little, i.e. in a range of a few millimeters, that the substantial verticality of the linear actuator is not dramatically affected.
- the radial lever may be designed to have a joint which allows it to tilt relative to the shaft, to accommodate the translational motion of the shaft with respect to the actuator.
- the ring gears 36, 37 and the Belleville spring 39 may be respectively displaced by hydraulic or pneumatic displacement means, and may be stressed thereby in the axial direction of the shaft 31.
- the end of the shaft 31 opposite the magnet is provided in the form of a hydraulic or pneumatic lock/release cylinder actuator , whose rod 50 projects out of the end of the shaft 31, and is mounted in such a manner as to be unable to rotate relative to the shaft 31 and is alternately subjected to the action of elastic means, such as the Belleville spring 39, which oppose the shaft translation toward disengagement of the ring gear teeth.
- elastic means such as the Belleville spring 39
- the end of the shaft 31 opposite the magnet has a coaxial dead recess, which acts as a chamber 51 for a hydraulic or pneumatic lock/release cylinder actuator, and receives a piston 52 therein, which is mounted at the inner end of the rod 50, whereas the cylindrical recess is tightly closed by an end portion 54 at the head of the shaft, a spring 39 being provided between the piston 52 and the end portion 54, whereas the piston 52 tightly projects out of this end portion.
- the chamber of the lock/release actuator cylinder is, for instance, filled with oil whereby the Belleville spring is stressed in the compression direction by the hydraulic lock/release actuators.
- This causes the shaft to be translated relative to the support case, and particularly, in the embodiment of Fig. 4 , the shaft moves toward the magnet, thereby bringing the ring gear 37 integral with the magnet and with the shaft, to disengagement from the ring gear 36 integral with the support case 32.
- This releases the rotation of the magnet connected to the shaft, which is driven by the radial lever moved by the linear actuator.
- the Belleville spring is released and brings the ring gears 36 and 37 into a mutual engagement position, thereby actually locking the rotation.
- the relative position of the rotating shaft and the case may be controlled by sensors and/or photocells which ensure that shaft rotation only stops when the facing teeth of the ring gears 36 and 37 are in a proper mutually meshed position, so that meshing occurs with no shocks or undesired small rotations.
- the magnet extreme positions may be also monitored, so that shaft rotation automatically stops when the shaft reaches either extreme position, i.e. when the magnet is in either C- or U-shaped position.
- This preferred arrangement provides a Magnetic Resonance Imaging apparatus which has a simple construction and is highly fail-safe, as the magnet may be only released when it is stressed by the lock/release piston which moves the two ring gears into disengagement and allows free rotation of the magnet.
- the action of the Belleville spring automatically moves the ring gears into a teeth mesh position, thereby causing the magnet to be immediately locked in position, and preventing it from uncontrollably and undesirably rotating.
- a further advantage as compared with prior art apparatuses is that any magnet lock/release and rotation action is performed by linear actuators, which have a simpler construction and ensure a higher reliability at lower costs as compared with normal prior art actuators.
- Fig. 5 further shows the lateral slide guides 95 for the patient table 99 which, in a preferred embodiment, are provided in the form of a vertical support tab 94 which extends toward the pole piece from the sides of the patient table, said support shoulder or tab being associated to a guide and slide combination, which is preferably formed by a longitudinal slide having a cylindrical head 93, cooperating with a concave guide 92 which has a corresponding open profile.
- a guide and slide combination which is preferably formed by a longitudinal slide having a cylindrical head 93, cooperating with a concave guide 92 which has a corresponding open profile.
- the longitudinal slide 93 is overhangingly supported toward the median area of the patient table surface and below said patient table surface by lower side tabs, branching off the two opposite longitudinal sides of the patient table.
- the guide 92 is carried by the shoulder which is oriented parallel to the slide and/or to the side tabs of the patient table, and this guide is open on the side turned toward the inner face of the tabs which carry the longitudinal slide 93.
- a guide 92 and slide 93 combination is provided on each longitudinal side of the patient table.
- the guide/slide combination may be advantageously provided in the form of a continuous guide which is coupled to a discontinuous slide or vice versa, to further and advantageously reduce the weight of the patient support device, which is intended to rotate with the magnet and therefore must have as light a weight as possible.
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Discharge Heating (AREA)
- Developing Agents For Electrophotography (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Claims (15)
- Appareil d'Imagerie à Résonance Magnétique, comprenant un aimant, ledit aimant ayant au moins deux, de préférence trois côtés ouverts, et délimitant la zone de réception du patient, ledit aimant étant constitué de trois éléments de culasse, c'est-à-dire de deux éléments de culasse parallèles magnétiquement perméables (1, 2), et d'un élément de culasse transversal (3) pour la connection des deux éléments parallèles précités, ledit aimant ayant ainsi une forme en C;
l'élément de culasse transversal précité (3) relie les portions d'extrémité desdits éléments de culasse parallèles (1, 2);
au moins deux pièces polaires dont chacune est portée par un desdits éléments d'étrier parallèles (1, 2) sur celui parmi eux orienté l'un vers l'autre, et entre lesdites pièces polaires, une cavité est formée pour contenir au moins un corps sous examen;
ladite cavité étant ouverte à au moins un côté;
au moins une structure de support magnétique, par rapport à laquelle
ledit aimant est apte à tourner autour d'un axe perpendiculaire à au moins un axe de ladite ouverture de cavité et passant à travers le centre du volume d'imagerie correspondant à la portion de ladite cavité dans laquelle le champ magnétique possède les meilleures caractéristiques pour l'imagerie du corps sous examen;
caractérisé en ce que
ledit aimant possède une bride de couplage (30) sur la paroi de son élément de culasse transversal (3) opposé à la cavité, pour la connection entre un arbre (31) et ledit élément d'étrier transversal (3) dudit aimant, ledit arbre étant monté d'une manière tournante sur un boîtier de support (32) par un moyen de support (33) apte à tourner et à translater;
la bride de couplage (30) et le boîtier de support (32) ayant des moyens de verrouillage/libération coopérant réciproquement pour verrouiller/libérer la rotation, qui permettent le changement d'un état de rotation d'aimant à un état d'arrêt d'aimant;
lesdits moyens de verrouillage/libération sont prévus sous la forme de deux couronnes dentées concurrentes (36, 37) dont une est reliée de manière non tournante au boîtier (32) et dont l'autre est reliée à la bride de couplage (30) de manière à tourner avec celle-ci;
lesdites couronnes dentées étant maintenues dans un état de prise mutuelle stable par la force exercée par un élément élastique;
des moyens étant prévus pour déplacer les deux couronnes dentées dans un état sorti de prise contre l'action dudit élément élastique (39). - Appareil d'Imagerie à Résonance Magnétique selon la revendication 1, caractérisé en ce que ledit élément élastique est de préférence réalisé sous la forme d'un ressort de Belleville.
- Appareil d'Imagerie à Résonance Magnétique selon une ou plusieurs des revendications 1 ou 2, caractérisé en ce que lesdites couronne dentées (36, 37) ont des dents frontales.
- Appareil d'Imagerie à Résonance Magnétique selon une ou plusieurs des revendications 1 à 3, caractérisé en ce que la couronne dentée (36) associée à la bride est intégrale avec l'arbre.
- Appareil d'Imagerie à Résonance Magnétique selon une ou plusieurs des revendications 1 à 4, caractérisé en ce que l'arbre (31) possède une poignée de manipulation d'arbre sur sa surface externe sous la forme d'un levier radial (63);
ledit levier radial (63) peut tourner intégralement avec l'arbre et est articulé à l'extrémité d'un actionneur linéaire hydraulique ou pneumatique (64);
la couronne dentée (37) associée à l'arbre (31) par ladite bride (30) et le ressort de Belleville (39) étant respectivement déplaçables et pouvant être mis en contrainte dans la direction axiale de l'arbre (31). - Appareil d'Imagerie à Résonance Magnétique selon une ou plusieurs des revendications précédentes, caractérisé en ce que lesdits moyens de déplacement d'une ou des deux couronnes dentées (36, 37) sont des moyens de verrouillage/libération hydrauliques ou pneumatiques.
- Appareil d'Imagerie à Résonance Magnétique selon une ou plusieurs des revendications précédentes, caractérisé en ce que l'extrémité de l'arbre (31) opposée à l'aimant est réalisée sous la forme d'un actionneur de cylindre de verrouillage/libération hydraulique ou pneumatique, dont la tige (50) fait saillie de ladite extrémité de l'arbre (31), tandis que la tige (50) est installée de manière à pouvoir tourner relativement à l'arbre (31) et est alternativement soumise à l'action des moyens élastiques (39) qui s'opposent à la translation de l'arbre vers une sortie de prise de la couronne dentée.
- Appareil d'Imagerie à Résonance Magnétique selon la revendication 7, caractérisé en ce que l'extrémité de l'arbre (31) opposée à l'aimant possède un évidement borgne coaxial qui agit comme une chambre (51) pour l'actionneur de cylindre de verrouillage/déverrouillage hydraulique ou pneumatique, un piston (52) étant reçu dans celle-ci, qui est installé à l'extrémité intérieure d'une tige (50), l'évidement cylindrique étant fermé d'une manière étanche par une portion d'extrémité (54) à la tête de l'arbre, et un ressort (39) étant prévu entre le piston (52) et ladite portion d'extrémité (54), le piston (52) faisant saillie d'une manière étanche de ladite portion d'extrémité.
- Appareil d'Imagerie à Résonance Magnétique selon une ou plusieurs des revendications 5 à 8, caractérisé en ce que le levier radial (63) est couplé à la tige de l'actionneur (64) par des moyens de coulissement qui coulissent dans la direction de translation axiale de l'arbre.
- Appareil d'Imagerie à Résonance Magnétique selon la revendication 9, caractérisé en ce que le levier radial (63) possède un terminal perforé et aminci, qui est monté sur une barre qui est tenue à ses extrémités par une fourche terminale (90) pour la connection à la tige.
- Appareil d'Imagerie à Résonance Magnétique selon la revendication 10, caractérisé en ce que ladite fourche (90) a une largeur telle que la barre tenue par celle-ci est au moins aussi longue ou légèrement plus longue que la course de translation de l'arbre.
- Appareil d'Imagerie à Résonance Magnétique selon une ou plusieurs des revendications 9 à 11, caractérisé en ce que l'actionneur linéaire possède un guidage coulissant à son extrémité associée au boîtier de support, pour permettre un mouvement de translation de l'actionneur de sorte que lorsque l'arbre est translaté, il entraîne également en translation l'actionneur linéaire, qui suit l'arbre par translation sur le guidage coulissant qui le relie au boîtier de support.
- Appareil d'Imagerie à Résonance Magnétique selon une ou plusieurs des revendications précédentes, caractérisé en ce que la tige de l'actionneur possède un degré de liberté, particulièrement de rotation, par rapport au levier radial.
- Appareil d'Imagerie à Résonance Magnétique selon une ou plusieurs des revendications précédentes 8 à 13, caractérisé en ce que l'actionneur linéaire est associé au boîtier de support ou au levier radial en interposant un joint qui lui permet de basculer pour recevoir la translation de l'arbre.
- Appareil d'Imagerie à Résonance Magnétique selon une ou plusieurs des revendications précédentes 8 à 14, caractérisé en ce que le levier radial possède un joint qui lui permet de basculer par rapport à l'arbre, pour recevoir le mouvement de translation de l'arbre par rapport à l'actionneur.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09167410A EP2113781B1 (fr) | 2004-04-13 | 2005-03-25 | Appareil de résonance magnétique nucléaire |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000016A ITSV20040016A1 (it) | 2004-04-13 | 2004-04-13 | Macchina per risonanza magnetico nucleare |
PCT/EP2005/051399 WO2005101047A1 (fr) | 2004-04-13 | 2005-03-25 | Appareil a resonance magnetique nucleaire |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09167410A Division EP2113781B1 (fr) | 2004-04-13 | 2005-03-25 | Appareil de résonance magnétique nucléaire |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1735630A1 EP1735630A1 (fr) | 2006-12-27 |
EP1735630B1 true EP1735630B1 (fr) | 2009-11-25 |
Family
ID=34956265
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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EP05728188A Active EP1735630B1 (fr) | 2004-04-13 | 2005-03-25 | Appareil a resonance magnetique nucleaire |
EP09167410A Active EP2113781B1 (fr) | 2004-04-13 | 2005-03-25 | Appareil de résonance magnétique nucléaire |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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EP09167410A Active EP2113781B1 (fr) | 2004-04-13 | 2005-03-25 | Appareil de résonance magnétique nucléaire |
Country Status (7)
Country | Link |
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US (1) | US7453264B2 (fr) |
EP (2) | EP1735630B1 (fr) |
AT (2) | ATE498845T1 (fr) |
DE (2) | DE602005026470D1 (fr) |
ES (2) | ES2337161T3 (fr) |
IT (1) | ITSV20040016A1 (fr) |
WO (1) | WO2005101047A1 (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITSV20040020A1 (it) * | 2004-05-07 | 2004-08-07 | Esaote Spa | Struttura magnetica per macchine mri e macchina mri |
EP3605131A1 (fr) * | 2009-06-30 | 2020-02-05 | Aspect Imaging Ltd. | Cage pour générer un champ magnétique dans un dispositif à résonance magnétique |
CA2760055C (fr) * | 2009-07-15 | 2021-04-06 | Viewray Incorporated | Procede et appareil pour blinder un accelerateur lineaire et un dispositif d'imagerie par resonance magnetique l'un de l'autre |
IT1397713B1 (it) | 2010-01-22 | 2013-01-24 | Esaote Spa | Macchina per risonanza magnetica nucleare con mezzi per la correzione dell'omogeneità del campo magnetico. |
US10076266B2 (en) | 2010-07-07 | 2018-09-18 | Aspect Imaging Ltd. | Devices and methods for a neonate incubator, capsule and cart |
US11278461B2 (en) | 2010-07-07 | 2022-03-22 | Aspect Imaging Ltd. | Devices and methods for a neonate incubator, capsule and cart |
US9446263B2 (en) | 2013-03-15 | 2016-09-20 | Viewray Technologies, Inc. | Systems and methods for linear accelerator radiotherapy with magnetic resonance imaging |
CN109310879A (zh) | 2016-03-02 | 2019-02-05 | 优瑞技术公司 | 利用磁共振成像的粒子疗法 |
US10224135B2 (en) | 2016-08-08 | 2019-03-05 | Aspect Imaging Ltd. | Device, system and method for obtaining a magnetic measurement with permanent magnets |
US11287497B2 (en) | 2016-08-08 | 2022-03-29 | Aspect Imaging Ltd. | Device, system and method for obtaining a magnetic measurement with permanent magnets |
US11988730B2 (en) | 2016-08-08 | 2024-05-21 | Aspect Imaging Ltd. | Device, system and method for obtaining a magnetic measurement with permanent magnets |
US10847294B2 (en) | 2017-07-10 | 2020-11-24 | Aspect Imaging Ltd. | System for generating a magnetic field |
JP7127126B2 (ja) | 2017-12-06 | 2022-08-29 | ビューレイ・テクノロジーズ・インコーポレイテッド | 放射線治療のシステム、方法およびソフトウェア |
CN114200366A (zh) * | 2021-12-16 | 2022-03-18 | 武汉联影生命科学仪器有限公司 | 匀场装置、磁场组件、磁共振成像系统及匀场方法 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01242056A (ja) * | 1988-03-24 | 1989-09-27 | Toshiba Corp | 磁気共鳴イメージング装置 |
JPH0217038A (ja) | 1988-07-06 | 1990-01-22 | Toshiba Corp | 磁気共鳴イメージング装置 |
US5207224A (en) * | 1988-12-09 | 1993-05-04 | Picker International, Ltd. | Magnetic resonance apparatus |
US5252924A (en) * | 1991-11-18 | 1993-10-12 | Sumitomo Special Metals Co., Ltd. | Magnetic field generating apparatus for MRI |
DE69129687T2 (de) | 1990-09-29 | 1999-03-11 | Sumitomo Spec Metals | Vorrichtung zur Erzeugung eines Magnetfeldes für die Bildgebung mittels magnetischer Resonanz |
US5153546A (en) | 1991-06-03 | 1992-10-06 | General Electric Company | Open MRI magnet |
US5343580A (en) * | 1991-12-04 | 1994-09-06 | Apogee Medical Products, Inc. | Indexing assembly for shoulder imaging |
JP3367685B2 (ja) * | 1992-05-20 | 2003-01-14 | 株式会社東芝 | ケーブル処理装置およびその装置を備えた磁気共鳴イメージング装置 |
US6023165A (en) * | 1992-09-28 | 2000-02-08 | Fonar Corporation | Nuclear magnetic resonance apparatus and methods of use and facilities for incorporating the same |
JP2774777B2 (ja) * | 1994-11-25 | 1998-07-09 | 株式会社日立メディコ | 磁気共鳴イメ−ジング装置 |
GB2300712A (en) | 1995-05-11 | 1996-11-13 | Elscint Ltd | Rotatable MRI magnet and patient support |
JP3016545B2 (ja) * | 1995-06-12 | 2000-03-06 | 信越化学工業株式会社 | 永久磁石磁気回路 |
EP1515150A1 (fr) * | 1995-08-28 | 2005-03-16 | Shin-Etsu Chemical Co., Ltd. | Circuit magnétique avec aimants permanents montés en opposition |
US6150818A (en) * | 1998-08-31 | 2000-11-21 | General Electric Company | Low eddy current and low hysteresis magnet pole faces in MR imaging |
JP2000139874A (ja) * | 1998-09-02 | 2000-05-23 | Sumitomo Special Metals Co Ltd | Mri用磁界発生装置 |
US7529575B2 (en) * | 1998-10-05 | 2009-05-05 | Esaote S.P.A. | Nuclear magnetic resonance imaging device |
JP4617596B2 (ja) * | 2001-04-24 | 2011-01-26 | 日立金属株式会社 | Mri用磁界発生装置およびそれを用いたmri装置 |
JP4214736B2 (ja) * | 2002-08-08 | 2009-01-28 | 日立金属株式会社 | Mri用磁界発生装置 |
US8064984B2 (en) * | 2003-03-18 | 2011-11-22 | Esaote S.P.A. | Magnetic resonance imaging apparatus |
-
2004
- 2004-04-13 IT IT000016A patent/ITSV20040016A1/it unknown
-
2005
- 2005-03-25 EP EP05728188A patent/EP1735630B1/fr active Active
- 2005-03-25 US US11/578,343 patent/US7453264B2/en active Active
- 2005-03-25 DE DE602005026470T patent/DE602005026470D1/de active Active
- 2005-03-25 WO PCT/EP2005/051399 patent/WO2005101047A1/fr not_active Application Discontinuation
- 2005-03-25 ES ES05728188T patent/ES2337161T3/es active Active
- 2005-03-25 ES ES09167410T patent/ES2358311T3/es active Active
- 2005-03-25 DE DE602005017880T patent/DE602005017880D1/de active Active
- 2005-03-25 EP EP09167410A patent/EP2113781B1/fr active Active
- 2005-03-25 AT AT09167410T patent/ATE498845T1/de not_active IP Right Cessation
- 2005-03-25 AT AT05728188T patent/ATE449970T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP2113781B1 (fr) | 2011-02-16 |
ATE449970T1 (de) | 2009-12-15 |
ES2358311T3 (es) | 2011-05-09 |
EP2113781A2 (fr) | 2009-11-04 |
ITSV20040016A1 (it) | 2004-07-13 |
ES2337161T3 (es) | 2010-04-21 |
EP1735630A1 (fr) | 2006-12-27 |
US7453264B2 (en) | 2008-11-18 |
ATE498845T1 (de) | 2011-03-15 |
US20070273378A1 (en) | 2007-11-29 |
DE602005017880D1 (de) | 2010-01-07 |
WO2005101047A1 (fr) | 2005-10-27 |
DE602005026470D1 (de) | 2011-03-31 |
EP2113781A3 (fr) | 2009-11-25 |
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